Saxon Q opens orders for room-temperature quantum computers – IT Brief UK

SAXON Q has opened orders for two room-temperature quantum computers based on diamond nitrogen-vacancy technology. The systems are described as the first commercially available diamond-based quantum computers with more than 100 qubits.
The Leipzig-based company is offering the 128-qubit SXQ128 and the 512-qubit SXQ512 as on-premises machines designed to fit inside a standard server rack and run from a normal electrical outlet. They do not require cryogenic cooling, vacuum equipment or specialist facilities, setting them apart from many other quantum computing platforms that remain tied to laboratory-style infrastructure.
The launch marks the first time diamond-based NV-centre quantum computers have exceeded 10 qubits in a commercial product, according to SAXON Q. The machines use a multicore architecture, with the SXQ128 providing eight entangled qubits per core and the SXQ512 providing 16 per core.
The systems are intended for workloads including variational algorithms, quantum chemistry simulations, quantum amplitude estimation and quantum convolutional neural networks. SAXON Q also said researchers could use them for materials research and industrial optimisation.
Deployment model
Unlike several competing quantum systems that depend on highly controlled environments, SAXON Q said its hardware can operate continuously at room temperature. Users can install the machines alongside existing computing infrastructure rather than in dedicated specialist sites, the company added.
The machines can also be expanded over time by upgrading the diamond chip or adding further cores. SAXON Q said this modular approach would let customers start with a smaller installation and increase quantum processing resources later.
SAXON Q said its qubits reach fidelity of up to 99.92%, which it described as fewer than one error per 1,000 operations. The company also said the systems use between six and 10 times less energy than GPU-based approaches.
The hardware is based on the company's work in placing nitrogen-vacancy centres in diamond with higher manufacturing yield than conventional methods. According to SAXON Q, its sulfur co-implantation process achieves conversion yields above 85%, compared with typical rates of 1% to 10% for traditional NV-centre creation methods.
Existing users
Previous-generation SAXON Q systems are already in use at the German Aerospace Centre and Fraunhofer IWU. Those organisations access the systems on site or through a cloud API, according to the company.
Fraunhofer IWU has been using one of the systems for industrial optimisation in material processing and robotics. The institute's experience provides one of the few public examples of the technology operating outside a lab environment.
“We began using a Saxon Q mobile quantum computing system in June 2025 for industrial optimization in material processing and robotics,” said Albrecht Hänel, Head of Digital Production Twin at Fraunhofer IWU.
“The system has operated at room temperature continuously since installation – and has exceeded the gate fidelity specifications we outlined in the tender,” Hänel said.
Manufacturing challenge
For diamond-based quantum computing, one of the main technical barriers has been the reliable creation of usable qubits at scale. NV-centre systems rely on defects in diamond that can act as quantum bits, but producing them consistently enough for commercial hardware has proved difficult.
Marius Grundmann, Co-Founder and Chief Executive Officer of SAXON Q, said the company had solved that manufacturing problem after years of work.
“For thirty years, NV-center quantum computing was a question of manufacturing – whether we could place qubits with enough precision and yield to build something that works outside a laboratory. We solved that problem,” said Marius Grundmann, Co-Founder and Chief Executive Officer of SAXON Q.
“The SXQ128 and SXQ512 are quantum computers that operate the way a computer should: reliably, continuously and without a team of specialists to keep it running,” Grundmann said.
The company was founded from research at the University of Leipzig and says its founding team has produced more than 1,000 published papers, secured more than 220 patents and patent applications, and received 13 industry and science awards. Grundmann is Professor of Experimental Physics at Leipzig University, while Co-Founder and Chief Technology Officer Jan-Berand Meijer is an ion implantation specialist whose work underpins the company's production methods.
SAXON Q said the SXQ128 is available to order now and can be delivered within three months of an order. The SXQ512 is also open for orders, with deliveries scheduled to begin in 2027.
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